Sorry to revive an ancient thread, but...
Yes. There's a photograph taken in the 20s that shows a car in front of the inn. Matching the terrain in Google Earth seems to show the inn about here: 37.700555, -122.038996. I'm confident that's the location within 150 meters, and it's near the old road.
It's very buried under 580, if this is indeed the location.
Here's a link to the photo: http://content.cdlib.org/ark:/13030/kt9f59r98m/?layout=metadata
[edited to change to better location]